What is "Cortana: Info gathering"?

Hi guys, I have just been looking through my Data Sense usage and found, at the bottom, an interesting entry - "Cortana: Info gathering". My phone is an unlocked Lumia 1520 running Cyan in the UK... But I'm not on the WP Dev program and so don't have 8.1 Update and Cortana yet... Therefore presumably this is something to do with MS gathering data on my phone, and perhaps my usage of it, in preparation for Cortana's arrival. Correct? Ilmiont